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health advisory Hospital Diseases 2007-11-12 17:57:12

Reflex Action, I think.

Answer:

The knee jerk reflex is called a myotatic reflex. It represents a relex arc in the nervous system: from the muscle to the afferent nerve to the spinal cord and back to the muscle. If it is decreased it could be a nerve problem (from skin to the spine). If it is increased it could be anxiety or problems affecting the central nervous system (brain and spinal cord) If it is asymmetric it helps to localize the neurologic problem

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I would like to know out of curiousity me self love!!!!

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Hit a nerve near the knee and the knee pulls up automatically. The doctor is testing to see whether your system is correctly wired. From that, a "knee-jerk reaction" is one that had no thought to it, exactly as the knee jerks when hit, whether you want it to or not.

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